Punching and pinking machine



(No Model.) 2 Sheets-Sheet 1. W E. B. STIMPSON.

PUNGHING AND PINKING MACHINE.

Patented Mar. 6, 1894-.

(No Model.) 2 Sheets-Sheet 2. E. B. STIMPSON. PUNGHING AND PINKINGMACHINE.

No. 515,92'7. Patented Mar. 6, 1894.

lfzyeyz i075 @5m/QQ UNITED S'rrrrns EDWIN B. STIMPSON, OF BROOKLYN, NEWYORK` PUNCHING ANDi PINKlNG MACHINE,

SPECIFICATION forming part of Letters Patent No. 515,927, dated March 6,1894. Y

Application filed October 9, 1893i Serial No. 487.704. (No model.)

To all whom it may concern:

Be it known that I, EDWIN B. STIMPsoN, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Punching and PinkingMachines, of which the following is a specification.

My invention relates to the class of machines usually employed forornamenting the margins of leather, cloth and the like, such machinecomprising as essentials, a rotary wheel-bearing, ordinarily, punchesand pinking-cutters, a bearing-roller on which the material rests whilebeing punched and pinked, and means for adjusting the bearing-roller upto the cutting-wheel. It has been customary, in this class of machines,to employ a bearing-roller of hard rubber or the like, and to employ ascrew for adjusting this roller up to the cutting-wheel so that thecutters on the latter may cut through the material but not enter thesurface of the bearingroller too deeply. After the latter roller hasbeen a short time in use its surface becomes roughened by the cuttersand it is then turned down ,smooth. This cutting away at intervalscontinually reduces the diameter of the roller and the forked carrier inwhich the roller is mounted must be adjusted up toward thecutting-wheel. I nd it desirable to provide the bearing-roller with ascrew adjustment for setting the roller up to the proper point withrespect to the cutting-wheel, and a cam device for clamping the materialto be cut between the bearing-roller and the cutting-wheel. This latterdevice is adapted to always impart the same amount of movement and itthus insures the material being always pressed up to the cutters with auniform pressure and with a simple movement of the cam-arm or lever. Ialso find it desirable to employ means for adjusting the bearing-rollerlongitudinally with respect to the wheel bearing the cutters so thatwhen the roller becomes roughened by the cutters at one point the rollermay be shifted longitudinally so as to present a fresh and smoothsurface to the cutters.

In the accompanying drawings l have illustrated a machine embodying myimprovements for accomplishing the purposes stated above.

In the drawings Figure l is a side elevation of the machine; and Fig. 2is a horizontal section taken in the plane of the line 2, 2,in Fig. l.Fig. 3 is a fragmentary view showing the main, operative, part of ,themachine in vertical section. Fig. 4 represents the bearingroller,detached. Fig. 5 shows the clearing linger, detached.

A is the base of the machine and B, the standard; these parts will be,preferably, cast in one piece and they form the frame of the machine.This frame may have any convenient shape or configuration. Mountedrotatively in the upper arm of the standard, is the cutterwheel shaft,ct, provided with a gear-wheel, a", which gears with a wheel a', on thecrank-shaft, a2. rlhis shaft is mounted in the standard and bears adriving-wheel, da, whereby the shaft a may be run by power if desired.The Wheel as also has a handle, a4, whereby the shaft may, as well,bedriven by hand. The outer end of the shaft a, is fitted to receive acutter-wheel, b, and a securing nut, hx, to hold said wheel firmly inplace. The wheel l), may be of the usual kind and bear punches andpinking cutters, and cutter-wheels of different kinds, may be readilyinterchanged. Mounted in a lower arm of the standard, is a forkedcarrier, C, the stem, c, of which plays in a bore in the arm having itsaxis at right-angles to the axis of the shaft a. .In the branches, 0X,om, of the fork is mounted a spindle, cl, which screws into the branchcxx, and has a shoulder, d',

and milled head, dx. `On the spindle d, is Y rotatively mounted thebearing-roller, e, which is commonly made 0f hard or vulcanized indiarubber. This roller is represented in end e-levation and in longitudinalsection, detached, in Fig. e. It has in it a counterbore, as clearlyshown, to adapt it to fit the shouldered spindle d. On the carrier C,isa guide-pin, c', which plays in a guide on the arm, in a well known way,'and prevents the rotation of the fork in its bearing; and in the lowerend of the stem, c, of the fork, is set an adjusting screw, f, the head,fx, of which is milled or roughened, so that it may be convenientlyturned by the thumb and finger,

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The lower end of the head fx, is somewhat rounded, as shown, and restson the base A, whereby `it forms a stop to limit the descent of thefork. It will readily be seen how, by

means of the screw f,the upper surface of the bearing-roller e may bemoved up or down to adjust it to the under side of the cutterwheel b.

On the bed A, is pivotally mounted at g,

1o (see Fig. 2) a swinging cam,or wedge, G,pro vided with an operatinglever or handle, GX. When moved to the positionseen in Figs. 1 and 2,this cam takes under the head of the screw f and raises the carrier Cuntil the upper surface of the bearing-roller is pressed into contactwith the cutters on the wheel b. The camG always raises the roller b tothe same extent if swung around until it strikes a limiting stop gx, onthe base.

So far asdescribed theoperation is as follows: To set the machineprimarily, the operator may pull the ycam G into the position seen infull lines in Figs. l and 2, and then,

by means of the screw f, adjust the bearing- 2 5 roller e into contactwith the cutters on the wheel b. He then swings the cam G back to theposition seen in dotted lines in Fig. 2, when the carrier C will drop byygravity to the position indicated in Fig. 3, leaving thus 3c snfcientspace between the bearing-roller and the kcutter-.wheel to introduce thematerial to be cut. In Fig. 1,7'1. is the feedguide for the material.When the material is in place, the operator swings the cam G again tothe position seen in Figs. l and 2, thus pressing the material upagainst the cutters, and then sets the cutter-wheel in motion. When onceproperly set by the screw f, the operator need only employ the cam G for4o and by always swinging the cam up to its stop gx, he can always beassured of the uniformity of the pressure, no matter what may be thecharacter of the material operated on. It will be understood that theessential idea is the combination with the variable adjustment affordedby the screw, of an invariable adjustment or regulation afforded by thecam, this latter being so constructed as to raise the 5o rollere, alwaysto the same extent when it has imparted to it sufficient movement tobring its thickest part under the head f X.

When the bearing-rollerbecomes roughened by the cutters, it may beshifted longitudi- 5 5 nally under the cutter-wheel by means of thescrew-spindle d, and a gage-screw, i', with a broad milled head, 11X.This gage-screw screws through the branch cXX of the forked carrier andits shank, measured from the 6o head tx, to its tip, is the same-as thatof the spindle d, measured from its tip to 4that face or end of theroller e which is adjacent to the branch c of the fork.

In eecting the shifting of the bearingroller e to the right in Figs. land 3 (for example), the gage-screw fi, is unscrewed or withdrawn to thedesired extent and the spindle moving the roller e up to thecutter-wheel,-

CZ screwed in until its tip strikes the head X of the screw e'. Theshoulder d on the spindle will drive the roller cover to the right, andthe roller will then be embracedloosely between said shoulder at the oneside and the tip of the gagescrew z' at the other side, so that itcannot move in the direction kof its axis.

Vhen the surface of the bearing-rollerbecomes so roughened as to requireit, said roller may be putin a lathe and turned down smooth. This willreduce its diameter and make another adjustment with the screw fnecessary.

Iiind that in using a cutter-wheel, as l),

with a recessed face, as clearly shown in Fig. 3, the bits cut from theleather or other material, and which work out from the punches into theannular recess inthe face of the wheel, are apt to pack in said recessand clog it. To prevent this I employ a clearing 1inger, I, seendetached in Fig. 5, and in place in Figs. l and 3. This device has acurved extremity, t', which when the finger is in place on the arm ofthe machine, enters into the annular recess in the face of thecutter-wheel and as the latter rotates, dislodges the bits collectedtherein or preventsthem from collecting. This curved extremity or tip i,may be so beveled or shaped, as seen in Fig. 5, as to throw out thebits'frorn the punches. The finger I may be adjustably secured to thefin or rib, BX, on the standard B, by means of a set-screw, 91X. I donot limit myself to the par ticular construction of this device asshown; it is only essential that the finger shall enter and occupy therecess in the Wheel and be held stationary by attachment to some part ofthe machine frame; and that it be readily removable and adjustable.

Having thus described my invention, I claim- 1. A machine of thecharacter described, provided with an adjusting screw for regulating thespace to receive the materials between the cutting-wheel andbearing-roller and a movable cam for clamping the material with auniform pressure between said bearingroller and cutter-wheelindependently of the screw adjustment, substantially as set forth.

2. In a machine for the purpose specified, the combination with theframe, a rotatable cutter- Wheel mounted therein, a bearingroller, amovable carrier for said bearingroller, and an adjusting screw in saidcarrier and interposed between it and a part of the frame, whereby thebearing-roller may be moved toward or from the cutter-wheel, the cam G,pivotally mounted on the frame and adapted to be interposed between theframe and said screw, and a stop to limit the movement of said camsubstantially as set forth.

3. In a machine for the purpose specified, the combination with theforked carrier, of the shouldered spindle, mounted in the branches ofthe same and screwing into one of said IDO IIO

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branches, and the bearing-roller, mounted rotativeiy on said spindle, ofthe gage-screw, t, mounted in the branch of the forked carrier andhaving a. head arranged tompinge on the point of the screw-spindle andform a limitingstop therefor, substantially as set forth.

ably on the frame, said nger having a tip or extremity which takes intothe recess in the face of the Wheel, substantially as and for thepurposes set forth.

In witness whereof I have hereunto signed my name in the presence of twosubscribing 4f. In a machine for the purpose specified, Witnesses. v thecombination with the frame, and a rotatl EDWIN B. STIMPSON. abiecutter-Wheel mounted therein, said Wheel Witnesses:

having a recessed face and punches, as described, of a clearing fingermounted remov- HENRY CONNETT, JAS. KING DUFFY.

